Crows

species: 
Rook
scientific name: 
Corvus frugilegus
notes: 

Dark-blue ring with a white three numeric code.

note 1 : used codes are 001-100.

note 2 :

email sighting submit: 
colour-ring type: 
Legring : one, coded.
colour-ring colour (of the c-ring): 
Dark Blue [B]
colour-ring code (of the c-ring): 
Three numeric code (3 numbers).
countries where ringed: 
The Netherlands.